1.5 Ton Goodman 15.2 SEER2 R32 A/C System GLXS5BA1810, AMST24BU1300
The smallest system in Goodman's high-efficiency GLXS5B R-32 series pairs the 18,000 BTU/h GLXS5BA1810 condenser with the compact AMST24BU1300 air handler. It's rated 15.2 SEER2 under AHRI certificate #215379950. Unlike the entry GLXS4 1.5 ton, the GLXS5BA1810 uses a high-efficiency scroll compressor. It also reaches 15.2 SEER2 with the short 45" air handler, so there's no need for a taller cabinet. That makes it a strong pick for condo owners, apartment landlords and small-home owners who want premium efficiency in a tight closet. It's cooling only, with optional Goodman electric heat strips.
Is a 1.5 Ton Air Conditioning System the Right Size?
An 18,000 BTU/h system is sized for a light cooling load. That typically means condos, apartments, casitas and small homes, often in the 600–900 sq. ft. range as a rough guide. Moving to the GLXS5 series changes efficiency and compressor type, not capacity. A 1.5 ton GLXS5 cools the same space as any other 1.5 ton system.
Units under a sun-baked roof, corner condos with glass on two sides, and older buildings with thin insulation can need more capacity than their floor plan suggests. Interior units and newer construction often need less. Run a load calculation first so the higher-efficiency investment goes into the right size.
Ideal for: Condos, apartments, casitas, ADUs, small single-story homes and rental units where owners want premium efficiency in a compact footprint.
Need more capacity? Step up to the 2 Ton Goodman 15.2 SEER2 R32 A/C System GLXS5BA2410, AMST24BU1300, which uses the same air handler.
Recommended home sizes are general guidelines only. Actual system requirements depend on insulation, climate, windows, ductwork, occupancy and a proper load calculation. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
What's Included
| Outdoor Condensing Unit | GLXS5BA1810 — 1.5 Ton High-Efficiency R32 Split System Air Conditioner |
|---|---|
| Indoor Air Handler | AMST24BU1300 Multi-Position ECM Air Handler (B Cabinet, 17.5" Wide) |
| Application | High-Efficiency Cooling-Only Split System (Electric Heat Kit Optional) |
| Refrigerant | R-32 |
| Compressor | Single-Stage High-Efficiency Scroll Compressor |
| Metering Device | Factory-Installed Internal Thermal Expansion Valve (TXV) |
| Electrical | 208/230V, Single Phase, 60 Hz Condensing Unit — 11.1 MCA / 15A Max Overcurrent |
| Air Handler Electrical | 208/240V, Single Phase — 5.8 MCA / 15A Max Overcurrent (No Heat Kit) |
The GLXS5BA1810 condenser keeps a compact 26" x 26" x 27" footprint at 116 lbs, with a 73 dBA sound rating and a 54 oz. factory R-32 charge. It fits small pads and a condenser wall mount or stand where yard space is limited. The 45"-tall AMST24BU1300 slides into condo closets and attic platforms in upflow or horizontal position. If you'd rather have a heat pump than heat strips, see the 1.5 ton Goodman GLZS5 R32 heat pump system.
Condensing Unit & Air Handler Features
GLXS5BA1810 Outdoor Condensing Unit
- 18,000 BTU/h nominal cooling capacity
- High-efficiency single-stage scroll compressor
- 73 dBA rated sound level
- 1/8 HP PSC condenser fan motor
- Fully charged for 15 ft. of tubing (54 oz. R-32)
- 3/8" liquid and 3/4" suction sweat service valves
- 5 mm copper tube / enhanced aluminum fin coil
- Factory-installed filter drier and high-pressure switch
- Optional ASC01A anti-short cycle and CSR-U-1 hard-start kits
- Meets 2023 Florida Building Code hurricane-wind requirements when anchored
AMST24BU1300 Multi-Position Air Handler
- Compact 45"-tall, 17.5" B cabinet
- ¾ HP direct drive, multi-speed ECM blower
- Internal factory-installed TXV
- All-aluminum evaporator coil optimized for R-32
- Factory-installed R-32 refrigerant sensor
- Upflow or horizontal, with a DFKE-02 downflow kit available
- Cabinet air leakage under 2.0% at 1.0" H₂O (ASHRAE 193)
- Foil-faced insulation to reduce cabinet condensation
- Tool-less 16" x 20" filter access
- Accepts HKTS electric heat kits from 3 kW up to 15 kW
Specifications & Manuals
Documentation includes GLXS5BA1810 electrical, refrigerant and dimensional data, AMST24BU1300 airflow and heat kit tables, accessory listings and installation instructions.
Frequently Asked Questions
What makes the GLXS5BA1810 different from the GLXS4BA1810?
Both share a 26" x 26" x 27" cabinet, but the GLXS5BA1810 uses a high-efficiency scroll compressor instead of a rotary compressor. With the AMST24BU1300, it's AHRI rated at 15.2 SEER2.
Why pick this over the GLXS4 1.5 ton paired with the taller AMST30BU1300?
Both reach 15.2 SEER2, but this GLXS5 system gets there with the 45" AMST24BU1300 instead of the 53-7/16" AMST30BU1300. That's helpful when closet or attic height is limited.
What accessories are available for the GLXS5BA1810?
Goodman lists the ABK-20 anchor bracket kit, ASC01A anti-short cycle kit, CSR-U-1 hard-start kit, 0163R00006 crankcase heater, FSK01A freeze protection kit, LSK02A liquid line solenoid kit, LAKT01 low-ambient kit and a low-pressure switch kit.
Is the 1.5 ton GLXS5 system ENERGY STAR certified?
Goodman's spec sheet carries the "Ask About ENERGY STAR" mark for the GLXS5BA1810. ENERGY STAR status depends on the exact matched indoor coil, so confirm the combination at energystar.gov or ask our team.
What circuit does the AMST24BU1300 need with a 5 kW heat kit?
Goodman's heat kit data lists an HKTS*05X1 on the AMST24BU1300 at 27/30.8 MCA and 30/35A max overcurrent (208V/240V). Always confirm against the rating plate and local code.
Does the AMST24BU1300 have a refrigerant leak sensor?
Yes. The AMST24BU1300 includes a factory-installed R-32 sensor designed for the lifespan of the coil. It's UL 60335-2-40 compliant for use with R-32 refrigerant.
GLXS5 Technical Specifications
GLXS Installation Manual
AMST Installation Manual"SEER2" stands for Seasonal Energy Efficiency Ratio 2. Specifically, SEER2 is the total heat removed from the conditioned space during the annual cooling season. The M1 testing procedure will increase systems' external static pressure by a factor of five to better reflect field conditions of install equipment. With this change, new nomenclature will be used to denote M1 ratings (including EER2 and HSPF2).
